Vehicle and vehicle control method

Abstract

A vehicle includes a battery including an all-solid-state battery configured to be externally chargeable with electric power supplied from outside of the vehicle, a heater configured to heat the battery, and a control device configured to control the heater. The control device controls the heater such that when a predetermined condition related to the external charging is satisfied, the temperature of the battery during execution of the external charging is higher than when the predetermined condition is not satisfied. The predetermined condition includes a condition that an elevation of the vehicle during the execution of the external charging is higher than a predetermined height.

What is claimed is: 
     
       1. A vehicle, comprising:
 a battery including an all-solid-state battery configured to be externally chargeable with electric power supplied from outside of the vehicle; 
 a heater configured to heat the battery; and 
 a control device configured to control the heater, wherein:
 the control device controls the heater such that a temperature of the battery during execution of an external charging is higher when a predetermined condition related to the external charging is satisfied than when the predetermined condition is not satisfied; and 
 the predetermined condition includes a condition that an elevation of the vehicle during the execution of the external charging is higher than a predetermined height. 
 
 
     
     
       2. The vehicle according to  claim 1 , wherein
 the control device:
 controls the heater such that the temperature of the battery approaches a target temperature; and 
 sets the target temperature higher when the predetermined condition is satisfied than when the predetermined condition is not satisfied. 
 
 
     
     
       3. The vehicle according to  claim 1 , wherein
 the control device controls the heater such that a heating output from the heater to the battery is higher when the predetermined condition is satisfied than when the predetermined condition is not satisfied. 
 
     
     
       4. The vehicle according to  claim 1 , wherein
 the control device controls the heater such that a temperature rise amount of the battery from a start of heating of the battery by the heater is higher when the predetermined condition is satisfied than when the predetermined condition is not satisfied. 
 
     
     
       5. The vehicle according to  claim 1 , wherein
 the predetermined condition further includes a condition that a state of charge of the battery during the execution of the external charging is higher than a reference value. 
 
     
     
       6. The vehicle according to  claim 1 , wherein
 the predetermined condition further includes a condition that a remaining charging time until an end of the external charging is shorter than a reference time. 
 
     
     
       7. The vehicle according to  claim 1 , wherein
 the predetermined condition further includes a condition that the vehicle is predicted to travel downhill at a position that exceeds a reference difference in elevation after an end of the external charging. 
 
     
     
       8. The vehicle according to  claim 1 , wherein
 the control device is configured to suppress charging of the battery as voltage of the battery rises. 
 
     
     
       9. A control method of a vehicle equipped with a battery including an all-solid-state battery, comprising:
 executing external charging for charging the battery with electric power supplied from outside of the vehicle; and 
 heating the battery with a heater, wherein:
 the battery is heated by the heater such that a temperature of the battery during execution of the external charging is higher when a predetermined condition related to the external charging is satisfied than when the predetermined condition is not satisfied; and 
 the predetermined condition includes a condition that an elevation of the vehicle during the execution of the external charging is higher than a predetermined height.